One interesting fanfiction could be where the S class heroes team up in a different way than in the original to face a new super - strong villain. Maybe they have to rely more on strategy rather than just brute strength, which gives a whole new perspective on their characters.
Sure. There's a fanfic where the S class heroes are training new recruits. It shows a different side of them, like their teaching styles and how they interact with the younger heroes. It's quite interesting.
You can find 'One Punch Man' fanfictions on websites like FanFiction.net. It has a large collection of fan - created stories related to 'One Punch Man'. There are different categories and ratings, so you can easily filter and find the ones that suit your taste.
Saitama is definitely a popular choice. His overpowered nature provides a lot of interesting angles for fanfiction. For example, you could write about a time when his nonchalant attitude gets him into trouble with the other S - Class heroes who don't understand his strength.
Another plot could be that an S - Class hero loses their powers. They then have to start from scratch and learn what it's like to be a normal person. Along the way, they discover new aspects of themselves and the world around them. This could lead to them developing a different kind of strength, not just physical but also emotional and mental, which in turn could help them regain their powers in a more evolved way.
You can try some fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, including One Punch Man fanfiction. Just search for 'One Punch Man' on the site, and you'll find a bunch of stories.
There's 'Sneaky Swordsman', a Z - class hero in One Punch Man Z - class fanfiction. He doesn't have the most powerful sword skills, but he is very sneaky and can use his environment to his advantage when fighting monsters. And then there's 'Patchwork Puppet', a hero who has a body made up of various parts and can disassemble and reassemble himself to surprise his opponents. These characters stand out because of their unique abilities and the ways they deal with the challenges in the world of One Punch Man.
One idea could be that Saitama enrolls in the school from 'Class'. He'd be this super powerful student that no one really understands at first. His nonchalant attitude towards the school's challenges would be really funny.
One interesting plot could be a Z - class hero's journey to become stronger. Maybe they start off as a weakling in the Z - class but through various trials, like facing off against low - level monsters alone, they gradually gain experience and new abilities. Another idea could be a Z - class hero forming an unlikely alliance with other Z - class heroes to take on a threat that the higher - class heroes overlook. It could be a group of misfits coming together to prove their worth.
Another plot could involve Saitama using his new S - Class status to reform the hero system. He might see all the flaws in it, like how some heroes are more concerned with fame than actually saving people. So, he starts making changes from the inside. He could introduce new training methods or even a new ranking system that focuses more on a hero's selfless deeds rather than just their power level.